techjunka, 24 Mar 2015sony if it sticks to 4 Gb ram, den s6 is no match, best res camera, front facin speakers
While I know that z4 will be one great devibe, I dont get the obsesion with high numbers.
4gb of ram? For what?
What can you guys posibly do to reach 4gb of random memory on a mobile?
You must be spending a lot of time in front of pixels to be so needy. There is no need to go for more ram.

Shen, 23 Mar 2015No you're wrong. Xperia Z4 Specs will be:
1. IP certified
2. Android 9.0 or Android P (Peppe... moreWhoa...WHO in the WORLD will equip such an expensive phone with a self-destruct function in a phone and who will use it and why ? To blow themselves up?

xperia z4 is a better them samsang galaxy s6 and s6egd because xperia z4 is relase a sep 2015 .xperia z4 is relasing a new vesion of os and improving new features and his look is many better them samsung galaxy phones

DenisXD: seriously how old are you?
Wait for them to get released, get to your nearest mobile shop and check them yourself. Then you decide what's best for YOU. Don't fall into marketing traps and preorders, 1st make sure that you KNOW what you buy.

DenisXD, 24 Mar 2015Samsung S6 is better than Sony Z4.
DenisXD: And you know this because you have a time machi... moresony if it sticks to 4 Gb ram, den s6 is no match, best res camera, front facin speakers

S6 VS Z4 ---> S6, 22 Mar 2015Samsung S6 is better than Sony Z4. It is mainly because of many useful features such as finger... moreZ4 is not even out yet, but you got the need to compare
So I will compare just as rightfully

Z4 has SD card up to 128 mb, a way cheplaper and userfriendly solution than soldered overpriced memory offerings of S6,, and with best memory managment amongst all flagships to date, only s6 bested z3 in that, remains to be seen what z4 offers...

Z4 Sonys IPS lcd screen offers slightly less ppi with higher luminosity level, and better color control and customization over its x-reality chip, and much more durability albeit quality...
So no amoled is not better, you are just led to believe it...

Z4 (if) SD810 is better in 7 of 12 SoC performance categories over exynos7420... So no, s6 SOC is not better, only on par...

Z4 baterrylife will be at least 50%-75% more than that of S6

Z4 camera will be a 20.7 mpx with new hdr realtime sensor and pixelphase focus, rendring OIS devices redundant, and with over 12000 ISO, so you can bring that s6 cam back to grandma...

Anonymous, 23 Mar 2015yeah, just the camera used by the iphone 6 snd note 4..Except the iPhone 6 still uses an inferior 1/3" sensor, and the Xperia Z range has had a 1/2.3" sensor since the first release...